(19)
(11) EP 4 550 192 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.05.2025 Bulletin 2025/20

(43) Date of publication A2:
07.05.2025 Bulletin 2025/19

(21) Application number: 25165183.2

(22) Date of filing: 29.10.2018
(51) International Patent Classification (IPC): 
G06F 21/62(2013.01)
 G06F 21/64(2013.01)
(52) Cooperative Patent Classification (CPC):
G06F 21/6254
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 30.10.2017 US 201762578880 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
18873874.4 / 3704619

(71) Applicant: Equifax Inc.
Atlanta, GA 30309 (US)

(72) Inventors:
  • Dong, Rongrong
    Suwanee Georgia, 30024 (US)
  • Mcburnett, Michael
    Cumming Georgia, 30041 (US)
  • Paradkar, Nikhil
    Atlanta Georgia, 30308 (US)

(74) Representative: Greenwoods 
Queens House 55-56 Lincoln's Inn Fields
London WC2A 3LJ
London WC2A 3LJ (GB)

   


(54) DATA PROTECTION VIA AGGREGATION-BASED OBFUSCATION


(57) In some aspects, a computing system can obfuscate sensitive data based on data aggregation. A sensitive database containing sensitive data records can be joined with a grouping database containing a group identifier. The joining can be performed through a linking key that links a sensitive data record with a grouping data record in the grouping database. A grouping identifier can thus be obtained for each of the sensitive data record.
The sensitive data records can be aggregated into aggregation groups based on their respective values of the group identifier. Statistics are calculated for the sensitive attributes of the sensitive data records in each aggregation group and are included in the aggregated data as the obfuscated version of the sensitive data. The aggregated data can be utilized to serve data queries from entities authorized or unauthorized to access the sensitive data.







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